Book or pamphlet covering machine



c. A. JUENGST.

BOOK 0R PAMPHLET COVERING MACHINE.

APPLICATION FILED APR- IB, I916.

Patented Aug. 1, 1916.

I0 SHEETS-SHEET 1- anueuro'c C. A. JUENGST.

BOOK 0R PAMPHLET COVERING MACHINE.

6 1 9 1 1L mm H A d e t n e t a P 6 M 8- R P A D u N o .H A c P P A 10SHEETS-SHEET 2- N 8 n U0 4 L fez CZarZes Juepgat w 3 @513 6] H01 mu C.A. JUENGST.

BOOK 0R PAMPHLET COVERING MACHINE.

APPLICATION FILED APR '8, 1915- 1 ,1 93,395. Patented Aug. 1,1916.

I0 $H[ET$SHEET 3- c. A. JUENGSI. BOOKUR PAMPHLET COVERING MACHINE.

APPLICATION FILED APR. I8 I9I6. 1,1 93,395. Patented Aug. 1, 1916.

I0 SHEETSSIIEET 4- mO &

8 n 00 1 LI' 3" C'hzrlgslilltnysl l C. A. JUENGST.

800K on PAMPHLET covznmc MACHINE.

, APPLICATION FILED APR- 18. I916- 1 5 1 93,395,- Patented Aug. 1, 1916.

\0 SHEETS-SHEET 5.

C. A. IUENGST.

BOOK 0R PAMPHLET COVERING MACHINE.

APPLICATION FILED APR-18.19%. 7 1,1 93,395. Patented-Aug. 1,1916. V I0SHEETS-SHEET 6.

anueuroz C. A. JUENGST.

800K 0R PAMPHLET COVERING MACHINE.

APPLICATION FILED APR. I8. M6-

1 1 93,395. Patented Aug. 1, 1916.

I0 SHEETS-SHEET 7- C. A. JUENGST.

BOOK 0R PAMPHLET COVERING MACHINE.

APPLICATION FILED APR. 1a. 1915.

1,1 93,395. Patenwd Aug. 1,1916.

IVSILEETS-SHEET 8.

nuanfoz Czar ks J Juenyst $1, afloxnc C. A. JUENGST.

BOOK 0R PAMPHLET COVERING MACHINE.

APPLICATION FILED APR. 1a, 1916.

1,193,395. Patented Aug. 1,1916.

I0 SHEETS-SHEET 9.

anucnfoz Patented Aug. 1, 1916.

10 SHEETS-SHEET l0.

anvenfoz CZarZes .W uenys $51 ano'zucu CHARLES A. JUENGST, 0F CROTONFALLS, NEW YORK.

BOOK OR PAMPHLET COVERING MACHINE.

Original application filed March 19, 1910, Serial No. 550,305.

Specification of Letters Patent.

Patented ug. 1, 1916.

Divided and this application filed April 18,

1916. Serial No. 91,863.

To all whom it m a 1 concern Be it known that I, CnARLEs A. JUnNos'r, acitizen of the United States, and a resident of Croton Falls, in thecounty of \Vestchcster and State of New York, have invented certain newand useful Improvements in Book or Pamphlet Covering Machines, of whichthe following is a specification.

The present invention relates to book or pamphlet covering machines, andhas for its main object a general reorganization of prior structureswhereby books may be more expeditiously handled.

This application is a division of application Serial No. 550,305, filedMarch 19, 1910.

In the prior art it has been customary to employ a book conveyer havingan intermittent motion, and to apply the cover while the book isstanding still.

()ne of the features of the present invention is to provide means toapplying the cover while the book is traveling, to the end that acontinuously advancing book conveyer may be employed. In this manner thebook is handled quicker, and I am enabled to more readily connect thebook covering machine up with a continuous running signature gatheringor other machine, such as a stitcher.

In carrying out this invention there is cmployed a cover breaker whichtravels longitudinally in unison with the book conveyer or the jaws andbook support of which have a movement substantially in synchronism withthe advance of the conveyer while breaking the cover or acting on thebook.

The cover may be fed to the books in any suitable manner, but, in thepresent form, an endless conveyer having pusher fingers is utilized.Preferably the books to be covered are fed automatically to the bookconveyer. In this manner, the operation of making the books can be madeautomatic and continuous throughout without any intervention on the partof the operator. In the form of the in vention disclosed, the books maybe brought automatically from a signature gathering or other machine,such as a stitcher or sewing machine. In order to-carry,-Qut this objectof the invention, means are provided for feeding the books to the bookconveyer in a horizontal direction and upright position. These feedingmeans feed the books in the same direction as the advancing movement ofthe book conveyer, and at an angle to the opening and closing movementof the book clamps carried by the conveyer.

A further object of the invention is to prevent the application of glueto the book in case no cover is fed into the machine at the appropriatetime to meet a certain book.

This feature of the invention consists in means controlled by the coverfeeding mechanism for preventing the application of glue to the book.These means may take many forms, but in the present instance the book orthe glue roller is given a movement one or both with relation to theother. As here shown, the glue roller has a movement toward and awayfrom the path of the book, which movement is interrupted by the absenceof a blank or cover in the cover feeding means. In the specific formhere shown, the cover drum or cylinder is conveniently utilized toeffect this interruption by arranging a feeler over a groove in thecylinder. This feeler controls the connection between the glue rollerand the actuating means for raising and lowering the same.

The book clamps have an opening and closing movement at an angle to theadvancing movement of the conveyer. This movement may be eitherrectilinear or, as shown in the present instance, curvilinear. Means areprovided for opening and closing these clamps to receive and dischargebooks during the travel of the conveyer. Preferably, as shown, theclamps are normally held closed, as by means of springs, and are openedto discharge and receive the books? by suitable means, as cams. Thebooks may be discharged in any suitable manner. Preferably an inclinedchute is employed which closes the cover on the book. This chute willpreferably lead to a stacker, which stacks the books.

Other features of construction, combination of parts and arrangement ofelements will appear as the specification proceeds.

In the accompanying drawings the invcntion is embodied in a concrete andseveral preferred forms, but changes of construction may of course bemade without departing from the legitimate and intended scope of theinvention.

In the said drawings: Figure 1 is a side elevation of a machine,embodying the invention, with some of the parts removed. Fig. 2 is ageneral top plan view of Fig. 1. Fig. 3 is an end view looking in thedlrection of the arrow 3 (Fig. 2) with the book conveyer and operatingcam for the book clamps in section. Fig. 4 is an end view of theframework of the machine looking in the direction of the arrow 4 (Fig.2), showing also the cover feeding mechanism. Fig. 5 is a side elevationof the gearing of the cover feeding mechanism looking in the directionof the arrow 5 (Fig. 4). Fig. 6 is a detail view of one of the droprollers showing how it is mounted. Fig. 7 is a side elevation of thecover breaker and adjacent parts. Fig.'8 is a plan view partly insection of the cover breaker shown in Fig. 7. Fig. 9 is a. verticaltransverse sectional view on the irregular line 99 (Fig. 8). Fig. 10 isa top plan view of the cover feed drum, glue pot and roller, detectordevice and adjacent elements. Fig. 11 is a side elevation of thedelivery chute and stacker. Fig. 12 is a front view of one of the bookclamps Fig. 13 is a side view of the clamp shown in position on theguides of the framework, said guides being in section. Fig. 14 is a rearview of the clamp.

- Fig. 15 is a transverse horizontal sectional view on the line 1515(Fig. 9). Figs. 16 and 17 are diagrammatic side elevations showingmodifications of the cover presser and breaker.

Similar characters of reference indicate corresponding parts in theseveral views.

In the drawings 1 indicates the book conveyer which passes around theupper and lower sprocket wheels 2 and 3 at each end and which slides inthe guides 4 and 5. The means for feeding books to the conveyer areindicated b 6, while 7 denotes the glue roller, 8 a rum forming thecover presser, 9 the cover breaker, 10 is the delivery chute, and 11 isthe cover feed mechanism. (See Figs. 1 and 2).

Each book clamp 12 consists of a relatively stationary member 13 towhich is pivoted the movable member 14 by means of the horizontal pivot15. Normally the movable member 14 isheld closed by means of the spring16 which is attached at one end to the pivot 15 and at its other end tothe movable member 14. 17 is a. cam roller carried by the movable member14 and which by engaging with a suitable cam opens the book clamp.

The book clamps are hinged together to form a conveyer, the member 13being to that end provided with hinge members 18 and 19 connectedtogether by means of the pins 20. These pins 20 carry horizontallydisposed rollers 21 at their upper and lower ends which, it will be seenrotate on a substantially vertical axis and travel between the flangesrespectively of the upper and lower horizontally disposed guides 4 and 5of the framework. These guides 4 and 5 terminate at the point where thesprocket wheels 2 and 3 are located and are arranged in the samehorizontal plane as the latter so that these sprocket wheels virtuallyform continuations of the guides 4 and 5. The s rocket wheels 2 and 3are provided with slots 22 into which the horizontal guide rolls 21 fit,and bythese means the book conveyer is driven. The clamps further carryvertically disposed bearers or rolls 23 which rotate on a substantiallyhorizontal axis and travel between the upper and lower guides 4 and 5and between the upper and lower sprockets 2 and 3.

Adjacent to one end of the machine there is located. suitable bookfeeding means consisting in the present instance of a lower guide 24,vertically superposed and longitudinally extending side guides 25 and aconveyer chain 26 having fingers 27. The books are here supposed to comefrom a signature gatherer and stiteher and slide along on the guide 24between the guides 25, motion being imparted to the books by means ofthe fingers 27.

The books are fed to the book covering machine in a horizontaldirection, while standing inan upright position with their backslowermost. As the books travel in the same general direction as theadvancing movement of the book conveyer they will be brought into theopen book clamp and when the fingers 27 have ceased to act on the books,

the gage 28, carried by each clamp, will take a hold of the book andproperly register it with reference to the cover subsequently to beapplied. The clamp then closes on the down motion by means of the cam 35which actuates the bell crank 36 controlling the connection 37 betweenthe said bell crank 36 and arm 34. As the book passes over the glueroller, the latter is raised into contact with the back of the book andan adhesive is applied to the back of the said book.

The cover presser which'is here shown as the cylinder or cover drum 8 islocated in the rear of the adhesive applying means. As on longitudinalguides 54 supported on the the book passes over the cover presser, theframe. The chains 39 encircle the cover cover meets the book and ispressed firmly breaker 9, and run at the top below the upinto contactwith the back of the book, to which glue has already been applied. Thedrum thus forms a cover presser which by reason of its rounded contactsurface applies the cover gradually and presses it in placeprogressively the full length of the book.

The cover conveyer is here constructed as follows: Carried on the sameshaft as the cover drum 8 are two sprockets 38 of less pitch diameterthan the pitch diameter of the cylinder 8. Passing over these sprocketsare two endless chains 39. These chains are supported at their other endeach by two sets of sprockets l0 and -11. The sprockets 40 and 11 areloosely mounted on the shafts 2 and 13, so that the chains 39 are drivenfrom the shaft of the cylinder 8 and not from the shafts 12 and 43. Thechains 39 are provided with pusher fingers H which serve to move thesheet or cover along the guides or sheet support l5, extending from therollers 17 and 18 to the cylinder 8, until it reaches the cylinder 8.\Vhen the sheet reaches this cylinder the fingers ll run down below thepitch circumference of the cylinder 8 and the tapes 16 serve to conveythe cover around the cylinder to the top thereof. As the surface speedof the cylinder 8 is greater than the speed of the chains 39, the speedof the cover will be accelerated and it will leave the pusher fingers4-1. V

200 indicates a belt tightener consisting of a plurality of bell cranksmounted on the pivot 201 and provided with the Weights 202. By thismeans the tension of the tapes 46 is regulated.

The cover may be fed to the chains 39 in any suitable manner. Forinstancean automatic sheet feeding device of any type may be employed.In the present instance there are utilized two pairs of drop rollers 47and 18 which are mounted fast on the shafts 13 and 19. These droprollers rotate at a higher speed than the chains 39 so that when a sheetor cover from the feed board 50 is placed in the bite of these droprollers, it is fed to the chains 39 with a quick motion. The shaft 19 ishung on two arms 51 which are moved up and down, to nip the sheet, bymeans of the cam 52, spring 207 and connecting rod 53. The pusherfingers H in addition to moving the sheet also serve as gages toregister the sheet or cover to coincide with the books carried by theclamps, and which books are registered by means of the gages 28.Preferably the number of book clamps and the number of divisions orpusher fingers on the chains 39 is equal. In the present instance thereare eighteen book clamps and a similar number of pusher fin- Hers H. Inorder to prevent sagging of the chains 39, the pusher fingers 44 maytravel per sheet support 55 which latter has a slot in it co-extensivewith the cover breaker. Otherwise this upper sheet support is unbrokenand extends as a shelf around the machine below the book conveyer, fromthe point where the cover breaker is located to the point where thedelivery chute 10 is located. In order to prevent the glue roller 7 fromapplying paste to the book when there is no cover to meet a certainbook, means are provided for tripping the glue roller.

56 indicates a spring feeler pivoted at 57. This feeler is connected bymeans of the link 58 to the rod 59 which passes through the stud 60 andis attached to the connection 37. A spring 61 is located between thestud 60 and the collar 62, and normally tends to push the spring feeler56 into the groove 63 of the cover drum 8, and the connection 37 oil theheel 61 of the bell crank 36. The spring 65 (see Fig. 1) tends tocounteract the spring 61 and assists in restoring the connection 37 toits seat on the heel 64. \Vhen no cover is on the drum 8, the feeler 56is forced into the groove 63 and the connection 37 is forced *ofi' theheel 61. The connection between the arm 31 and the actuating cam 35 istherefore broken and the glue roller is not raised. \Vhen, however, thecover comes along on the drum 8, the feeler 56 is forced outward therebyrestoring the. connection 37 to its seat on the heel 61, so that as thecam 35 rotates, the glue roller 7 will be raised. The spring 65 beingopposed to the spring 61 assists the cover in displacing the feelerfinger out of the groove in the cylinder and being attached directly tothe connection 37, assists in replacing sai connection in engagementwith the heel 61.

The cover breaker is movable horizontally on a vertically adjustableguide which guide comprises two horizontal shafts 66 connected togetherby means of the vertical bars 67. This guide is mounted on thetransverse studs 68 swung on the arms 69 of the bushing 70 on thetransverse fixed supporting shafts 71. 72 indicate depending arms fromthe bushing 70 connected together by means of the rod 73.

74 is a cam mounted on the main shaft 75. The motion of this cam istransmitted by means of a lever 76 pivoted at 77 and having a cam roll78. This lever 76 is connected to one of the depending arms 7 2 by meansof the connection 79. Under the influence of the cam 74, the guide israised and lowered by turning the bushings 7 0 around the two supportingshafts 71.

Extending between the supporting shafts 71 are the brace rods 80 whichcarry the breaker cams 81 on opposite sides of'the guides. These breakercams are mounted,

and adjustable in a transverse direction, on the brace rods 80 and areheld in position by means of the set screws 82 passing through the slots83. Two adjusting screws 84 extend through the brace rods and areprovided at their inner ends with a head 85 fitting in a recess 86 ofthe breaker cams. The screws 84 have pinions 87 on their outer endswhich mesh with a central and long gear 88 mounted on a pintle 89 whichturns idly in the brace rods 80 and is held in position by a set screw90 extending into the circumferential slot 91. When the set screws 82are loosened, the breaker cams can 'be adjusted by turning the handle 92on the gear 88.

Mounted on the shafts 66 of the guide is a slide 93 provided with acentral book support 94. This slide is caused to reciprocate by the cam95, acting through the lever 96, having the cam roll 97, and connectedto the pivot 98 of the slide by means of the rod 99. Mountedlongitudinally on the brackets 100 opposite to each other are the coverbreaker aws 101. Secured to each bracket 100 is a guide rod 102 whichslides through holes 103 in the slide 93 and in a corresponding hole 104in the opposite bracket 100. Passing through a hole 105 in the slide 93is a spring 106 which engages in the sockets 107 of the cover breakerjaws 101 and normally presses them apart. Carried by the brackets 100are rollers 108 which engage with the cams 81 as the slide 93reciprocates and counteract the effect of the spring 106 thereby movingthe cover breaker jaws 101 inwardly to break the cover. As the bookcomes opposite the cover breaker, the guide comprising the two shafts 66and the elements carried thereby rises by reason of the bushings beingturned around the supporting shafts 71 under tln influence of the cam74. This brings the central book support 94 into contact with the book.Substantially at this moment the slide 93 commences it forward movementunder the-influence of the cam 95. As the slide advances, the rollers108 come in contact with the cams 81 and the brackets 100, carrying thecover breaker jaws 101, are moved inwardly into contact with the cover.When the rollers 108 have passed the cams 81 the cover breaker jawsrecede. After that the guide comprising shafts 66 and elements carriedthereby drops down, and the slide 93 returns to its original position.In order to prevent displacement of the slide with reference to the bookclamp as they travel in unison, there is provided a stop 109 on theslide 93 which comes in contact with the stop 110 on the book clamp.These two stops virtually secure the two members tother while theytravel in unison. The

ok continues its onward travel until it reaches the delivery chute 10.Here the book clamp opens and the book travels down the chute, wherebythe cover flaps are closed up around the book. The chute 10 is inclinedas shown, and leads down to the trough 111 of the stacker. Located inthe chute 10 is an endless conveyer 112 provided with laterallyprojecting pins 113 which engage with the books and feed them downward.

203 is a supporting shaft carried by the framework and provided with abracket 204 which forms a support for the shelf 55 adjacent to the chute10. This shaft also carries a bearing 205 for the shaft 206 of the chutedelivery mechanism. The stacker consists of the trough 111 and avibrating stacker blade 114 mounted on the shaft 115. This stacker bladegradually moves the books out through the trough 111. In order toprevent the blade from adhering to the books on account of air.pressure, perforations 116 are provided. To hold the books alreadystacked and to prevent them from becoming displaced there is provided aseparator 117, mounted on the shaft 118, which moves down and holds thebooks while the stacker blade recedes.

Motion may be imparted to the various devices, comprising the machine,in many ways. In the form here shown there is a main shaft extendinglongitudinally underneath the machine. At the forward end of this shaftis a sprocket wheel 119 which drives the sprocket wheel 120 by means ofthe chain 121. The sprocket 120 has a crank connection 122 with theshaft 123 carrying the bevel gear 124 meshing with the bevel gear 125 onthe upright shaft 126. The shaft 126 carries a sprocket 127 which drivesthe chain 26 of the book feeding device. (See Figs. 1 and-3). At theother end of the main shaft 75 is a bevel pinion 128 meshing with thebevel gear 129 on the upright shaft 130, which latter carries thesprockets 2 and 3 of the book conveyer. The sprockets 2 and 3 of thebook conveyer at the forward end of the machine are mounted on arotatable shaft 131 having no driving connection with the main shaftexcept through the book conveyer, and these forward sprockets aretherefore merely idlers. (See Figs. 1 and 2 Mounted substantially midwayof the main shaft is a bevel gear 132 which engages with a bevel gear133 on the transverse shaft 134 having the sprocket 135. A chain 136passes from this sprocket 135 up to the sprocket 137 on the shaft 31,thereby driving the glue roller. (See Figs. 1, 7, 9 and 10). Mounted onthe shaft 134 is further a gear 138 meshing with the pinion 1'39 swungon the arm 140 of the shaft 141. The pinion 139 meshes with the gear 142on the shaft 141, which gear 142 meshes with the gear 143 of the coverdrum. By these means motion is imparted to the cover drum and to theconveyer 39. (See Figs. 7,9and 10). Mountllo ll l

ed on the shaft 134 is another sprocket 144 which imparts motion to theshaft 145 by means of the chain 146 and sprocket 117. On the shaft 145is another sprocket 148 which imparts motion to the sprocket 119 on theshaft 150 by means of the chain 151. The shaft 150 has a gear 152meshing with a gear 153 which latter meshes with the pinion 15+, on theshaft 49, and with the gear 155. Gear 155 in turn meshes with the pinion156, on the shaft 43, and with the gear 157 on the shaft 42. (See Figs.1, 2, 4, 5, 7, 9 and 10). Mounted on the main shaft is further aneccentric 158 connected by means of the rod 159 to the rock arm 160, onthe rockshaft 115, which thus serves to vibrate the stacker blade 114.(Figs. 3 and 11).

Adjacent to the eccentric 158 is a cam 161 with which engages the camroll 162 of the arm 163. This arm 163 is mounted on the stud 118 and isconnected to the separator 117. .(Figs. 3 and 11). The shaft 115 extendsacross the machine and carries a sprocket 16-L which communicates motionto the sprocket 165 by means of the chain 166. The sprocket 165 ismounted on the stud 167 which also carries another sprocket 168 overwhich the chain 112 passes. This chain 112 passes over the sprocket 169on the shaft 206 at its other end. (See Fig. 11).

170 indicates a cam bolted to the framework which opens the book clamps.This cam starts at a point just before the book clamps reach the chute10. The shape of the cam is such that it acts on the roller 17 to openthe book clamp just as the said clamp reaches the delivery chute 10. Theclamp is opened gradually and continues in its open position until italmost reaches the point where the books are fed in when by reason ofthe shape of the cam 170 it is opened still farther and then closesquickly by reason of the abrupt change in the shape of the cam.

Above the glue roller and above the cover breaker are two cams 171 and172 which are pivoted at 173 and 174. Both of these cams are constructedalike and both act to assist the springs 16 in keeping the book clampsclosed while the glue roller and cover breaker act upon the book. Infact, they prevent the clamps from opening and the springs 16 fromyielding. Each cam 171 and 172 is provided with an arm 175 which is heldunder tension by the spring 176 surrounding the rod 177.

In Figs. 16 and 17 are illustrated certain modifications of the coverbreaker and presser. In these figures the cover drum 178 is shownlocated beneath the path 179 of the back of the book. The cover in thisinstance is not applied to the back of the book by the cover drum, butis carried forward by 180. In Fig. 16, the member the conveyer breakersuch as 18 181 indicates a cover jaws, and

shown in Figs. 7, 8, and 9. This cover breaker would. in this instance.therefore also act as a cover presser and would lift the cover off theconveyer 180 into contact with the book. In Fig. 17, 181 indicates thesame cover breaker as shown in Fig. 16, but in addition thereto there isa cover presser 182. This cover presser member 182 raises the cover oflthe conveyer and presses it into contact with the book, while the member181 breaks the cover as usual.

I claim:

1. A book covering machine comprising, a traveling conveyer, movablebook clamping jaws carried by the conveyer arranged to have an openingand closing movement at an angle with respect to the movement of theconveyer, means for opening and closing the jaws, means for feedingbooks in substantially the same direction with the traveling movement ofthe conveyer into position beneath the open jaws, and means for applyingcovers to the books held in the jaws.

2. A book covering machine comprising, a conveyer having a continuousadvancing movement, movable book clamping jaws carried by the conveyerand arrange have an opening and closing movement at an angle withrespect to the movement of the conveyer, means for opening and closingthe jaws, means for feeding books in substantially the same directionwith the traveling movement of the conveyer into position beneath theopen jaws, and means for applying covers to the books held in the jaws,while the books are traveling.

3. A book covering machine comprising, a traveling conveyer, movablebook clamping jaws carried by the conveyer arrange to have an openingand closing movement at an angle with respect to the movement 0 theconveyer, means for opening and closing the jaws, means for feedingbooks in an upright position and in substantially the same directionwith the traveling movement of the conveyer into position beneath theopen jaws, and means for applying covers to the books held in the jaws.

4. A book covering machine comprising, a conveyer having a continuousadvancing movement, book clamping jaws carried by the conveyer having anopening and closing movement at an angle with respect to the advancingmovement of the conveyer, means for opening and closing the jaws, meansfor feeding books in an upright position and in substantially the sameirection with the traveling movement of the conveyer into positionbeneath the open I means for applying covers to the books held in thejaws, while the books"are traveling.

5. In a conveyer having movement, means book covering machine, a book alongitudinal advancing for feeding a cover in the machine,

same direction as the movement of the book conveyer, and gages on thebook conveyer and cover feeding means for bringing the book and coverinto register.

6. In a book covering machine, a book conveyer having a continuousadvancing movement, means for feeding a cover in the same direction asthe movement of the book conveyer, and gages on the book conveyer andcover feeding means for bringing the book and cover into register.

7. In a book covering machine, a traveling book clamp, adhesive applyingmeans located underneath the book clamp, a cover drum in the rear, ofthe adhesive applying means, means for raising and lowering the adhesivea plying means, and a detector controlled y the sheet on the cover drumacting in the absence of *a sheet to interrupt the operation of themeans for raising and lowering the adhesive applying means.

8. In a book covering machine, a book conveyer, a glue roller located inthe path of the book conveyer and having a movement toward and away fromthe same, cover feeding means, and detector mechanism adapted to detectthe absence of a cover in said feeding means and having connection withthe glue roller to render the same inoperative under such conditions.

9. In a book covering machine, a book clamp and a glue roller havin gacooperative relative movement, one with respect to the other, coverfeeding means, and detector mechanism adapted to detect the absence of acover in the feeding means and adapted thereupon to prevent thecooperative movement of the book clamp and glue roller.

10. In a book covering machine, a traveling book clamp and means forholding the same closed upon a book in the 'p thereof, adhesive applyingmeans locat in the path of the clamp, cover applying mechanism locatedin the path of the clamp, and means for applying additional pressure tothe clamp while traveling past the adhesive applying means and covervapplying mecha IllSm.

11. In a book .coveri ng machine, the com-' bination with a travelingbook clamp, means normally holding the clamp closed, means for openingthe clamp to receive a book, a glue roller located in the path of theclamp, and means for applying additional pressure to the clamp whiletraveling past said glue roller.

12. The combination in a book covering of a traveling book clamp andmeansforholding the same closed upon a book in the grip thereof,adhesive applying means located in the path of the clamp, and

I means for applying additional pressure to the clamp while the same istraveling past said aghesive applying means.

book covering machine comprising,

a book support, an inclined chute terminating said book support, atraveling book clamp above the book su port, means for feeding books tothe book 0 am means for applying a cover to the book he d in the bookclamp, and means for opening the book clamp when it reaches the inclinedchute to deliver the book thereto.

14. A book covering machine comprising, a book support, an inclinedchute terminating said book support, a traveling book clamp above thebook support, means for feeding books to the book clamp, means for aplyinga cover to the book held in the book 0 amp, means for opening thebook clamp when it reaches the inclined chute to deliver a book thereto,and an inclined conveyer located in said chute.

15. A book covering machine comprising, a travelin book clamp, means forfeeding books to t e book clamp, means for applying a cover to the bookheld in the book clamp, an inclined delivery chute located below theclamp, means for opening the clamp when it reaches the inclined chute topermit the book to travel down said chute, a trough for receiving thebooks from the chute, and means for stacking said books transversely inthe trough.

16. A book covering machine comprising,

'a book support, an inclined chute terminating said book su port, atraveling book clamp, above the 00k support, means for feeding books tothe book clamp, means for applying a cover to the book held in the bookclamp, means for opening the book clamp when-it reaches the inclinedchute to deliver the book thereto, a trough for receiving the books fromthe chute, and means for stacking said bookstransversely in the trough.

17. A book covering machine comprising, a traveling book clamp, meansfor feeding books to said book clamp, means for applying a cover to thebook held in the book clamp, an inclined delivery chute located belowthe clamp, means foropening the clamp when it reaches the inclined chuteto per 18. A book covering machine comprising,

a book support, an inclined chute terminating said book support, atraveling book clamp above the book sup ort, means for feeding books tothe book 0 amp, means for applylng a cover to the book held in the bookclamp, means for opening the book clamp when it reaches the inclinedchute to deliver the book veyer located in said chute, receiving thebooks'from means for stacking said books transversely in th trough.

a trough for thereto, an inclined con-' 7 the chute, and' 19. A bookcovering machine comprising, a book conveyer having an advancingmovement, means mounted independently of the conveyer for acting on thecover of the book. means for causing said first means to travel inunison with the book conveyer, means for moving the book conveyer andsaid first means one into relation with the other, and complementarystops carried by the book conveyer and said first means respectively,adapted to engage each other to prevent the book conveyer and said firstmeans from slipping one with relation to the other.

20. A book covering machine comprising, a continuously moving bookconveyer, means for applying adhesive to the books carried by theconveyer, means located adjacent to the path of the conveyer for feedingcovers tothe books carried by the conveyer, a cover breaking devicelocated adjacent to the path of the conveyer, means for causing thecover breaking device to engage and break the cover, and means formoving the cover breaking device in unison with the advancing movementof the conveyer while breaking the cover.

21. A book covering machine comprising, a traveling book conveyer, meansfor applying adhesive to the books carried by the conveyer, meanslocated adjacent to the path of the conveyer for feeding covers to thebooks carried by the conveyer, a cover breaking device located adjacentto the path of the conveyer and having jaws moving from opposite sidesof the conveyer inwardly toward each other, and means for moving thecover breaking device in unison with the advancing movement of theconveyer when the jaws move inwardly toward each other.

22. A book covering machine comprising, a continuously moving bookconveyer, means for applying adhesive to the books carried by theconveyer, means located adjacent to the path of the conveyer for feedingcovers to the books carried by the conveyer, a cover breaking devicelocated adjacent to the path of the conveyer and having jaws moving fromOpposite sides of the conveyer inwardly toward each other, and means formoving the cover breaking device in unison with the.

advancing movement of the conveyer when the jaws move inwardly towardeach other.

23. A book covering machine comprising, a plurality of traveling bookclamps, said clamps having jaws hinged at their upper edges and therebyadapted to grasp the books fed thereto in an upright position, meanslocated adjacent to the path of the clamps for feedi the books in anupright POSitlOIl to the said clamp's'in substantially the samedirection as the direction of travel of the clamps, means locatedadjacent to the path of the clampsfor feeding covers to the books, andmeans for associating the books with the covers.

24. A book covering machine comprising, a book conveyer traveling in adirection longitudinally of the machine, adhesiveapplying means locatedadjacent to the path of the book conveyer, a drum located adjacent tothe book conveyer and underneath the same, 'an endless cover feedingconveyer moving in a vertical plane also located underneath the bookconveyer, extending longitudinally thereof and passing over the drum,the upper side of said cover feeding conveyer traveling in the samedirection as the book conveyer, and cover breaking means locatedunderneath the book conveyer and adjacent to the cover conveyer.

25. A book coverin machine comprising, a book conveyer trave ing in adirection longitudinally of the machine, adhesive applying means locatedadjacent to the path of the book conveyer, an endless cover conveyermoving in a vertical plane located adjacent to the book conveyer andextending longitudinally thereof underneath the same, the upper side ofsaid conveyer traveling in the same direction as the book conveyer, andcover breaking means located underneath the book conveyer and adjacentto the cover conveyer.

26. A book covering machine comprising, a traveling book conveyer,adhesive applying means, means located adjacent to the path of theconveyer for feeding covers to the books carried by the conveyer, acover breaker, having jaws, adjacent the path of the conveyer, means fprimparting to said cover breaker a movement toward and away from the bookconveyer and a movement in unison with and in the same direction as theadvancin movement of the book conveyer,

and means for moving the jaws of the cover breaker toward each otherinto engagement with the cover.

27. A book covering machine comprising, a continuously traveling bookconveyer, adhesive applying means, means located adjacent to the ath ofthe conveyer for feeding covers to the books carried by the conveyer, acover breaker, having jaws, adjacent the path of the conveyer, means forimparting to said cover breaker a movement toward and away from the bookconveyer and a movement in unison with and in the same direction as theadvancing movement of the book conveyer, and means for moving the jawsof the cover breaker toward each other into engagement with the cover.

28. In a book covering machine, a. continuously travelin book conveyermoving in a horizontal pat a pair of cover breaking jaws arranged onopposite sides of the conveyer, means for imparting a horizonta'lreciprocating motion to said jaws longitudinally of the path of theconveyer, means for imparting a vertical rising and falling motion tothe jaws, and means for imparting a transverse movement Ito the jaws soas to.

cause them to approach and recede from each other laterally.

29. In a book covering machine, a cover breaker comprising two opposedcover breaking jaws, means for imparting a. horizontal reciprocatingmotion in a longitudinal direction tosaid jaws, means for imparting avertical rising and falling motion to said jaws, and means for impartinga transverse horizontal movement to the jaws so as to cause them toapproach and recede from each other laterally.

30. In a book covering machine, a cover breaker comprising a guide,means for lifting and lowering said guide, a slide, means forreciprocating said slide longitudinally on the guide, cover breakingjaws carried by the slide, and means for transversely reciprocating saidcover breaking jaws.

31. In a book covering machine, a book conveyer having a longitudinaladvancing movement, a pair of cover breaking jaws, means for imparting areciprocating motion to said jaws longitudinally of the path of theconveyer, means for causing .them to rise vertically prior to the strokeof the said jaws in the direction of the advancing movement of the bookconveyer, and means for imparting a lateral motion to said jaws to-.ward each other as they travel in the direction of the advancingmovement of the conveyer.

32. In a book covering machine, a book clamp, adhesive applying means,means for causing the book clamp and adhesive applying means to approacheach other, cover feeding means, and means controlled by the sheet onthe cover feeding means acting in the absence of a sheet to interruptthe operation of the means for causing the hook clamp and adhesiveapplying means to ap proach each other.

33. A book covering machine comprising a plurality of book clampsmounted to have an advancing movement, book feeding means located tofeed books to the clamps in substantially the direction of the path ofmovement of said clamps, means for causing the clamps to seize the booksas the said clamps reach the point at which the books are fed, adhesiveapplying means located adjacent to" the path of the clamps engaging'thebacks of the books held in the clamps, cover applying means locatedadjacent to the path of the clamps for carrying the covers mtoengagement with the adhesive backs of the books held by the clamps,cover breaking means located to act on the covers so applied to thebooks and having a movement in unison with the advancing movement of theclamps while breakin the covers, and means for opening the boo clamps todischarge the covered books therefrom.

34. A book covering machine comprising,

a plurality of book clamps mounted to have an advancing movement in anendless path, said clamps having vertical jaws hinged at their upperedges, means for opening the clamping jaws at a predetermined point,book feeding means located to feed the books in an upright position tothe clamps in substantially the direction of the path of movement of theclamps at a point beneath the clamping jaws while in their openposition, means for causin the clamps to seize the books, and means orapplying the covers to the books held in the clamps.

35. A book covering machine comprising an endless book conveyer havingtwo substantially parallel sides and traveling in a horizontal plane,adhesive applying means, cover feeding means and cover breaking means,all located adjacent to one of the said parallel sides of said conveyer,and means disposed at the opposite parallel side of the conveyer forcausing the books to be discharged therefrom.

36. In a book covering machine, a plurality of book clamps forming aconveyer having two substantially parallel sides and traveling in ahorizontal plane, book feeding means, cover feeding means and means forassociating the books and covers, all located adjacent to one of theparallel sides of the conveyer, means for causing the clamps to seizethe books as they are fed thereto by the book feeding means, means"disposed on the opposite parallel side of the conveyer for opening thebook clamps to discharge the books therefrom when the books have beencarried around to the opposite side of the machine, and a shelf on whichthe backs of the books slide as they are carried around by the clampsdisposed beneath the horizontal path of the clamps and extendingsubstantially fromthe means for associrating the books and covers on oneof the parallel sides of the conveyer around to the other parallel sideof the conveyer to the point of discharge of the books.

37. In a book covering machine, an endless conveyer having twosubstantially parallel sides, means for imparting an advancing movementto the conveyer in a horizontal plane, book clamps carried by theconveyer,

ook feeding means located to feed the books to the clamps in a pathsubstantially coinciding with one of the parallel sides of the conveyer,adhesive applying means located beneath the conveyer in the rear of thebook feeding means, cover feeding means located adjacent to the conveyerand in the rear ofthe adhesive applying means for carrying the coversinto engagement with the adhesive backs of the books held b the clam s,cover breaking means located a acent to t e conveyer and in the rear ofthe covenfeeding means, said adhesive applying cover feeding means andcover breaking ineans being located at one of the parallel sides of theconveyer, and means disposedat the opposite parallel side of theconveyer for opening the book clamps to discharge the books therefromwhen the books have been thus carried around the opposite side of themachine.

38. In a book covering machine, an endless conveyer having twosubstantially parallel sides, means for imparting an advancing movementto the conveyer in a horizontal plane, book clamps carried by theconveyer, book feeding means located to feed the books to the clamps ina path substantially coinciding with one of the parallel sides of theconveyer, adhesive applying means in the rear of the book feeding means,cover feeding means located adjacent to the conveyer and in the rear ofthe adhesive ap plying means for carrying the cover into engagement withthe adhesive backs of the books held by the clamps, cover breaking meanslocated adjacent to the conveyer and in the rear of the cover feedingmeans, said adhesive applying means, cover feeding means, and coverbreaking means being lo-- cated at one of said parallel sides of theconveyer, means disposed at the opposite parallel side of the conveyerfor opening the book clamps to discharge the books therefrom when thebooks have been thus carried around the opposite side of the machine,and a shelf disposed beneath the conveyer on which the books hold by theclamps of the conveyer slide extending substantially from the coverbreaking means around to the point of discharge of the books.

39. In a book covering machine, a book conveyer traveling in a definitepath, a drum having its peripheral surface so disposed that the line ofmovement of the backs of the books carried by the book conveyer istangent to the drum whereby to press the covers into firm engagementwith the backs of the books held in the book conveyer, and means forfeeding covers to said drum.

40. In a book covering machine, a book conveyer traveling in a definitepath, an endless cover conveyer arranged to carry the covers intoengagement with the backs of the books carried by the conveyer, and arotating drum around which the cover conveyer passes so mounted that theline of movement of the books held in the conveyer ment of the backs ofthe books carried by the book conveyer is tangent to the drum whereby topress the covers into firm engagement with the backs'of the books heldin the book conveyer, and means for feeding covers to said drum.

42. In a book covering machine, a book conveyer traveling in a definitepath, adhesive applying means arranged to apply an adhesive to the backsof the books held in the conveyer, a cover feeding means arranged tocarry the covers into engagement with the adhesive backs of the books, adrum so disposed that the line of movement of. the backs of the bookscarried by the conveyer is tangent to the drum whereby to press thecovers into intimate engagement with the backs of the books, and asupporting shelf disposed beneath the book conveyer and extendingsubstantially from the point at which the covers are applied to thebacks of the books the length of one or more books.

43. A book covering machine comprising, the combination with a bookconveyer traveling in a definite path, of a drum having its peripheralsurface so disposed that the line of movement of the backs of the bookscarried by the book conveyer is tangent to the drum and arranged therebyto press the covers into firm engagement with the backs of the books,and means for feeding covers between the backs of the books and thedrum.

44. A book covering machine comprising, the combination with a bookconveyer traveling in a definite path, of a cover presser having itsperipheral surface so disposed that the line of movement of the backs ofthe books carried by the book conveyer is tangent to the cover presser,said cover presser moving when pressing the cover in the same directionwith the advancing movement of the book conveyer and arranged to presseachcover progressively along its full length into engagement with theback of the book and means for feeding covers between the backs of thebooks and the cover presser.

45. A book covering machine comprising, the combination with a bookconveyer traveling in a definite path, of a cover presser disposedbeneath the book conveyer so that the line of movement of the backs ofthe books carried by the book conveyer is tan gent to the upper surfaceof the cover presser, said cover presser arranged to receive the coverson its surface and to carry the covers up into engagement with the backsof the books, and means for feeding covers between the backs of thebooks and the cover presser.

46. A book covering machine comprising, the combination of a bookconveyer traveling in a definite path, a cover presser so disposed thatthe line of movement of the backs of the books carried by the bookconveyer is tangent to the peripheral surface of the cover presser, andcover feeding means associated with the cover presser whereby said coverpresser will press the covers into engagement withthe backs of the booksin the conveyer.

47. A book covering machine comprising, the combination of a travelingconveyer, dependent book-clamping jaws carried by the conveyer andhinged at their upper edges to the said conveyer, means for swinging thejaws on their hinges to open them at an angle with respect to themovement of the conveyer, means for feeding books in substantially thesame direction with the traveling movement of the conveyer into positionbeneath the open jaws, means for closing the jaws upon the books, andmeans for applying covers to the books held in the aws.

48. A book covering machine comprising, the combination of a conveyerhaving a continuous advancing movement, dependent book-clamping jawscarried by the conveyer and hinged at their upper edges to the saidconveyer, means for swinging the jaws on their hinges to open them atanangle with respect to the movement of the conveyer, means for feedingbooks in substantially the same direction with the traveling movement ofthe conveyer intorposition beneath the open jaws, means for closing thejaws upon the books, and means for applying'covers to the books held inthe jaws.

49. A book covering machine comprising, the combination of a conveyerhaving a continuous advancing movement, dependent book-clamping jawscarried by the conveyer and hinged at their upper edges to saidconveyer, means for swinging the jaws on their hinges to open them-at anangle with respect to the movement of the conveyer, continuouslyoperating book feeding means arranged to feed the books in substantiallythe same direction with the traveling movement of the conveyer intoposition beneath the open jaws, means for closing the jaws upon thebooks, and means for applying covers to the books held in the jaws.

50. A book covering machine comprising, the combination of a conveyerarranged to travel in a substantially horizontal plane, dependentbook-clamping jaws hinged at their upper edges to the conveyer, meansfor swinging the said jaws on their hinges outwardly and upwardly intoopen position, means for feeding books in substantially the samedirection with the advancing movement of the conveyer into positionbeneath the open jaws, means for closing the jaws upon tlie books, andmeans for applying covers to the books held in the jaws.

51. A book covering machine compigising, the combination of a conveyerhaving a continuous advancing movement and arranged to travel in asubstantially horizontal plane, dependent book-clamping jaws hinged atthe cover breaking t heir upper edges to the conveyer, means forswinging the said jaws on their hinges outsitioil beneath the openbook-clamping jaws,

means for closing the jaws upon the books,

and means for applying covers to the books held in the jaws.

52. In a book covering machine, the combination of a traveling bookconveyer, cover feeding means arranged to feed covers to the bookscarried by the conveyer, adhesive applying means, and detector mechanismarranged to detect the absence of a cover in the feeding means andadapted thereupon to prevent the operation of the adhesive applyingmeans.

53. In a book covering machine, a traveling book conveyer, and adhesiveapplying means, having a cooperative relative movement one with respectto the other, whereby to apply adhesive to the book carried by the bookconveyer, cover feeding means, and detector mechanism arranged to detectthe absence of a cover in the feeding means and adapted thereupon toprevent the application of the adhesive to the book in the bookconveyer.

54. The combination in a book covering machine, of a traveling bookclamp and means for holding the same closed upon a book in the gripthereof, cover applying mechanism located in the path of the clamp,

and means for applying additional pressure to the clamp while travelingpast the cover applying mechanism.

55. A book covering machine comprising a traveling book conveyer, meansfor feeding covers to the books carried by the conveyer, a coverbreaking device located adjacent to the path of the conveyer, means forcausing the cover breaking device to engage and break the cover, andmeans'for'moving device in unison with the advancing movement of theconveyer while breaking the cover.

56. A book covering machine comprising, a book conveyer traveling in adefinite path, cover pressing means disposed substantially in the lineof movement of the backs of the books carried gressively applying andpressing the cover into engagement with the back of the book, and meansfor feeding covers to the cover pressing means.

57. A book covering machine comprising, abook conveyer traveling in adefinite path, adhesive applying means adapted to apply an adhesive tothe backs of the books carried by the conveyer, cover-pressing meansdisposed substantially in the li f movement by the book conveyer forproof the backs of the books carried by the book 1 "f0

